How to find specific string constant in line and copy the following - c++

Question

I am creating a somewhat weak/vague database (My experience is very little, and please forgive the mess of my code). For this, I create a check everytime my console program starts that checks whether a database (copied to userlist.txt) is created already, if not a new will be created, if the database exists, however, it should all be copied to a 'vector users' (Which is a struct) I have within the class 'userbase' that will then contain all user information.
My userstats struct looks like this,
enum securityLevel {user, moderator, admin};
struct userstats
{
string ID;
string name;
string password;
securityLevel secLev;
};
I will contain all this information from a textfile in this code,
int main()
{
Userbase userbase; // Class to contain userinformation during runtime.
ifstream inFile;
inFile.open("userlist.txt");
if(inFile.good())
{
// ADD DATE OF MODIFICATION
cout << "USERLIST FOUND, READING USERS.\n";
userstats tempBuffer;
int userCount = -1;
int overCount = 0;
while(!inFile.eof())
{
string buffer;
getline(inFile, buffer);
if (buffer == "ID:")
{
userCount++;
if (userCount > overCount)
{
userbase.users.push_back(tempBuffer);
overCount++;
}
tempBuffer.ID = buffer;
cout << "ID"; // Just to see if works
}
else if (buffer == "name:")
{
cout << "name"; // Just to see if works
tempBuffer.name = buffer;
}
else if (buffer == "password:")
{
cout << "password"; // Just to see if works
tempBuffer.password = buffer;
}
}
if (userCount == 0)
{
userbase.users.push_back(tempBuffer);
}
inFile.close();
}
...
What I try to do is to read and analyze every line of the text file. An example of the userlist.txt could be,
created: Sun Apr 15 22:19:44 2012
mod_date: Sun Apr 15 22:19:44 2012
ID:1d
name:admin
password:Admin1
security level:2
(I am aware I do not read "security level" into the program yet)
EDIT: There could also be more users simply following the "security level:x"-line of the preceding user in the list.
Now, if the program reads the line "ID:1d" it should then copy this into the struct and finally I will put it all into the vector userbase.users[i]. This does not seem to work, however. It does not seem to catch on to any of the if-statements. I've gotten this sort of program to work before, so I am very confused what I am doing wrong. I could really use some help with this. Any other kind of criticism of the code is very welcome.
Regards,
Mikkel

Answer 1

None of the if (buffer == ...) will ever be true as the lines always contain the value of the attribute contained on each line as well as the type of the attribute. For example:
ID:1d
when getline() reads this buffer will contain ID:1d so:
if (buffer == "ID:")
will be false. Use string.find() instead:
if (0 == buffer.find("ID:")) // Comparing to zero ensures that the line
{ // starts with "ID:".
// Avoid including the attribute type
// in the value.
tempBuffer.ID.assign(buffer.begin() + 3, buffer.end());
}
As commented by jrok, the while for reading the file is incorrect as no check is made immediately after getline(). Change to:
string buffer;
while(getline(inFile, buffer))
{
...